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SubjectRe: [PATCH] iommu/vt-d: remove unneeded validity check on dev
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On 2022/4/4 15:52, Muhammad Usama Anjum wrote:
> Any thoughts?

It looks good to me. I will queue it for v5.19.

Best regards,
baolu

>
> On 3/13/22 8:03 PM, Muhammad Usama Anjum wrote:
>> dev_iommu_priv_get() is being used at the top of this function which
>> dereferences dev. Dev cannot be NULL after this. Remove the validity
>> check on dev and simplify the code.
>>
>> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
>> ---
>> drivers/iommu/intel/iommu.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
>> index df5c62ecf942b..f79edbbd651a4 100644
>> --- a/drivers/iommu/intel/iommu.c
>> +++ b/drivers/iommu/intel/iommu.c
>> @@ -2502,7 +2502,7 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu,
>> }
>> }
>>
>> - if (dev && domain_context_mapping(domain, dev)) {
>> + if (domain_context_mapping(domain, dev)) {
>> dev_err(dev, "Domain context map failed\n");
>> dmar_remove_one_dev_info(dev);
>> return NULL;
>

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